Part machining clamp with workpiece protection structure

Abstract

The utility model relates to the technical field of machining, in particular to a part machining clamp with a workpiece protection structure, which comprises a base plate, a supporting table fixedly connected to the upper surface of the base plate, a first cylinder arranged on the lower side of the supporting table, a main fixing clamp arranged on the upper side of the supporting table, and a protection soft block fixedly connected to one side of the main fixing clamp. A first pressure sensor is embedded in the protection soft block, a buffer frame is arranged on one side of the first pressure sensor, one side of the buffer frame is fixedly connected with a sliding frame, a rotating plate is installed at one end of the sliding frame, a second air cylinder is arranged on the lower side of the rotating plate, and a second pressure sensor is embedded in one side of the sliding frame; the device has the beneficial effects that a workpiece is placed on the upper surface of the supporting table, a main fixing clamp clamps and fixes the workpiece, meanwhile, one side of a buffer frame abuts against the workpiece, so that auxiliary clamping is conducted on the workpiece, a first pressure sensor and a second pressure sensor feed back pretightening force on the workpiece to a controller in real time, and therefore the workpiece can be automatically clamped. Therefore, the workpiece is prevented from being damaged due to excessive stress.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a component processing fixture with a workpiece protection structure. Background Art

[0002] Machining refers to the process of changing the shape, size or performance of a workpiece through a mechanical equipment. It can be divided into cutting and pressure processing according to the difference in processing methods. The production process of a machine refers to the entire process of making products from raw materials. For machine production, it includes the transportation and storage of raw materials, production preparation, manufacturing of blanks, processing and heat treatment of parts, assembly and debugging of products, painting and packaging, etc. The content of the production process is very extensive.

[0003] In the prior art, during the process of machining a workpiece, the workpiece is generally placed directly on a machining table, and the periphery of the workpiece is clamped and fixed by a fixture.

[0004] However, the clamp is only fixed and clamped during the clamping process, so the workpiece may often be clamped with inappropriate tightness during use, causing the workpiece to slip or be damaged, resulting in production accidents or significant losses. Utility Model Content

[0005] The purpose of the utility model is to provide a method to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a parts processing fixture with a workpiece protection structure, comprising: a chassis, a support platform fixedly connected to the upper surface of the chassis, a first cylinder arranged on the lower side of the support platform, a main fixing clamp arranged on the upper side of the support platform, a protective soft block fixedly connected to one side of the main fixing clamp, and a first pressure sensor embedded in the protective soft block.

[0007] A buffer frame is arranged on one side of the first pressure sensor, one side of the buffer frame is fixedly connected to the sliding frame, a rotating plate is installed at one end of the sliding frame, a second cylinder is arranged on the lower side of the rotating plate, and a second pressure sensor is embeddedly installed on one side of the sliding frame.

[0008] Preferably, a base is fixedly connected between the first cylinder and the chassis, and a connecting plate is fixedly connected to the output end of the first cylinder.

[0009] Preferably, the base is rotatably connected to one end of the lower connecting frame through a pin, the other end of the lower connecting frame is rotatably connected to one end of the L-shaped frame through a pin, and the other end of the L-shaped frame is rotatably connected to the bottom of the main fixing clamp through a pin.

[0010] Preferably, the connecting plate and the L-shaped frame are rotatably connected via a pin, an upper connecting frame is provided on one side of the L-shaped frame, one end of the upper connecting frame is rotatably connected to the connecting plate via a pin, and the other end of the upper connecting frame is rotatably connected to the bottom of the main fixing clamp via a pin.

[0011] Preferably, the sliding frame is slidably sleeved on the top of the fixed platform, the lower surface of the fixed platform is fixedly connected with a support seat, and the support seat is fixedly connected to the chassis.

[0012] Preferably, the bottom end of the second cylinder is rotatably sleeved on the support seat, and the output end of the second cylinder is rotatably connected to the rotating plate through the central axis.

[0013] Preferably, the rotating plate is rotatably connected to the fixed seat through the large shaft, the fixed seat is fixedly installed on the fixed platform, a groove plate is fixedly installed on one side of the sliding frame, the groove plate is slidably connected to the small shaft, and the small shaft is fixedly sleeved in the rotating plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the workpiece is placed on the upper surface of the support table, and the main fixing clamps on both sides of the support table are indirectly driven to move toward each other through the contraction of the output end of the first cylinder, so that the main fixing clamps clamp and fix the workpiece, and a protective soft block is installed on the main fixing clamp, and the protective soft block abuts against the side wall of the workpiece, and the protective soft block can protect the workpiece during the clamping process, and the rotating plate is indirectly rotated by controlling the contraction of the output end of the second cylinder, and the sliding frame is indirectly driven to slide under the rotation of the rotating plate, so that the sliding frame moves in the direction close to the workpiece, and one side of the buffer frame abuts against the workpiece, thereby auxiliary clamping of the workpiece, a first pressure sensor is embedded and fixedly installed on one side of the protective soft block, and a second pressure sensor is embedded and fixedly installed on one side of the buffer frame, and the first pressure sensor and the second pressure sensor will feed back the preload force on the workpiece to the controller in real time, and when the standard pressure value is reached, the controller stops the contraction of the first cylinder and the second cylinder to avoid the workpiece from falling due to a small preload force or being crushed due to a large preload force, thereby protecting the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a top view schematic diagram of the overall structure of the utility model;

[0017] Figure 3 It is a bottom view schematic diagram of the overall structure of the utility model;

[0018] Figure 4 It is a side view schematic diagram of the overall structure of the utility model.

[0019] In the figure: 1, chassis; 2, support platform; 3, first cylinder; 4, main fixing clamp; 5, protective soft block; 6, first pressure sensor; 7, buffer frame; 8, sliding frame; 9, rotating plate; 10, second cylinder; 11, base; 12, connecting plate; 13, pin shaft; 14, lower connecting frame; 15, L-shaped frame; 16, upper connecting frame;

[0020] 17. Fixed platform; 18. Support seat; 19. Middle axis; 20. Large axis; 21. Fixed seat; 22. Grooved plate;

[0021] 23. Small shaft; 24. Second pressure sensor. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1-Figure 4 The utility model provides a technical solution: a parts processing fixture with a workpiece protection structure, comprising: a chassis 1, a support platform 2 is fixedly connected to the upper surface of the chassis 1, a first cylinder 3 is arranged on the lower side of the support platform 2, a main fixing clamp 4 is arranged on the upper side of the support platform 2, a protective soft block 5 is fixedly connected to one side of the main fixing clamp 4, a first pressure sensor 6 is embedded in the protective soft block 5, a buffer frame 7 is arranged on one side of the first pressure sensor 6, one side of the buffer frame 7 is fixedly connected to a sliding frame 8, a rotating plate 9 is installed at one end of the sliding frame 8, a second cylinder 10 is arranged on the lower side of the rotating plate 9, and a second pressure sensor 24 is embedded on one side of the sliding frame 8.

[0025] The workpiece is placed on the upper surface of the support table 2, and the main fixing clamps 4 on both sides of the support table 2 are indirectly driven to move toward each other through the contraction of the output end of the first cylinder 3, so that the main fixing clamps 4 clamp and fix the workpiece. A protective soft block 5 is installed on the main fixing clamp 4, and the protective soft block 5 abuts against the side wall of the workpiece. The protective soft block 5 can protect the workpiece during the clamping process. By controlling the contraction of the output end of the second cylinder 10, the rotating plate 9 is indirectly rotated. Under the rotation of the rotating plate 9, the sliding frame 8 is indirectly driven to slide, so that the sliding frame 8 moves toward the direction close to the workpiece, and one side of the buffer frame 7 abuts against the workpiece, thereby auxiliary clamping of the workpiece is performed. A first pressure sensor 6 is embedded and fixedly installed on one side of the protective soft block 5, and a second pressure sensor 24 is embedded and fixedly installed on one side of the buffer frame 7. The first pressure sensor 6 and the second pressure sensor 24 will feed back the preload force on the workpiece to the controller in real time. When the standard pressure value is reached, the controller stops the contraction of the first cylinder 3 and the second cylinder 10 to prevent the workpiece from falling due to a small preload force or being crushed due to a large preload force, thereby protecting the workpiece.

[0026] Embodiment 2

[0027] On the basis of the first embodiment, a base 11 is fixedly connected between the first cylinder 3 and the chassis 1, and a connecting plate 12 is fixedly connected to the output end of the first cylinder 3. The base 11 is fixedly installed on the chassis 1, so that the base 11 fixedly supports the first cylinder 3. The base 11 is rotatably connected to one end of the lower connecting frame 14 through the pin shaft 13, and the other end of the lower connecting frame 14 is rotatably connected to one end of the L-shaped frame 15 through the pin shaft 13. The other end of the L-shaped frame 15 is rotatably connected to the bottom of the main fixing clamp 4 through the pin shaft 13, and one end of the lower connecting frame 14 is rotatably connected to the base 11 through the pin shaft 13, and the other end of the lower connecting frame 14 is rotatably connected to the L-shaped frame 15 through the pin shaft 13. One end of the L-shaped frame 15 is rotatably connected, the top of the L-shaped frame 15 is rotatably connected to the main fixing clamp 4 through a pin shaft 13, the connecting plate 12 and the L-shaped frame 15 are rotatably connected through the pin shaft 13, an upper connecting frame 16 is provided on one side of the L-shaped frame 15, one end of the upper connecting frame 16 is rotatably connected to the connecting plate 12 through the pin shaft 13, and the other end of the upper connecting frame 16 is rotatably connected to the bottom of the main fixing clamp 4 through the pin shaft 13, the connecting plate 12 is fixedly installed at the output end of the first cylinder 3, the upper connecting frame 16 is rotatably connected to the connecting plate 12 through the pin shaft 13, and the upper connecting frame 16 is rotatably connected to the bottom of the main fixing clamp 4 through the pin shaft 13.

[0028] The output end of the first cylinder 3 is in the initial state when it is extended. By controlling the contraction of the output end of the first cylinder 3, the connecting plate 12 fixedly connected to the output end is driven to move downward. The two sides of the connecting plate 12 are connected by the rotation of the pin shaft 13, which drives the upper connecting frame 16 and one side of the L-shaped frame 15 to rotate, so that the lower side of the L-shaped frame 15 drives the lower connecting frame 14 to rotate away from the first cylinder 3 with its bottom pin shaft 13 through the connection of the pin shaft 13. At the same time, the upper side of the upper connecting frame 16 and the L-shaped frame 15 drives the main fixing clamp 4 to move toward the first cylinder 3 through the connection of the pin shaft 13, so that the protective soft block 5 on one side of the main fixing clamp 4 slowly abuts against the side wall of the workpiece, thereby clamping and fixing the workpiece.

[0029] Embodiment 3

[0030] On the basis of the second embodiment, the sliding frame 8 is slidably sleeved on the top of the fixed platform 17, and the lower surface of the fixed platform 17 is fixedly connected with a support seat 18, and the support seat 18 is fixedly connected to the chassis 1. A sliding rod is fixedly installed on the sliding frame 8 so that it can slide in the sliding hole opened on the top of the fixed platform 17. The support seat 18 fixedly supports the fixed platform 17, and the lower surface of the support seat 18 is fixedly connected to the chassis 1. The bottom end of the second cylinder 10 is rotatably sleeved on the support seat 18, and the output end of the second cylinder 10 is rotatably connected to the rotating plate 9 through the central axis 19. The bottom of the second cylinder 10 is rotatably mounted on the support seat 18 through a limit pin, and the output end of the second cylinder 10 and the rotating plate 9 are rotated through the central axis 19. Dynamic connection, the rotating plate 9 is rotatably connected with the fixed seat 21 through the large shaft 20, the fixed seat 21 is fixedly installed on the fixed platform 17, a groove plate 22 is fixedly installed on one side of the sliding frame 8, the groove plate 22 is slidably connected with the small shaft 23, the small shaft 23 is fixedly sleeved in the rotating plate 9, the fixed seat 21 is fixedly installed on the fixed platform 17, a large shaft 20 is fixedly sleeved in the fixed seat 21, the rotating plate 9 is rotatably sleeved on the large shaft 20 through a bearing fixedly installed thereon, a small shaft 23 is provided on one side of the groove plate 22, and the small shaft 23 is slidably connected with the recessed part of the groove plate 22, so that when the rotating plate 9 is rotated, the small shaft 23 drives the sliding frame 8 to move through the sliding connection between the groove plate 22.

[0031] When the second cylinder 10 is extended, it is in the initial state. By controlling the output end of the second cylinder 10 to contract, the rotating plate 9 is driven to move through the connection of the middle shaft 19. The bottom of the rotating plate 9 is rotatably sleeved on the fixed seat 21 through the large shaft 20. Therefore, under the rotation of the rotating plate 9, the rotating plate 9 drives the small shaft 23 fixedly sleeved on the top thereof to move. The small shaft 23 is slidingly connected to the groove plate 22, so that the sliding frame 8 on one side thereof is driven to move toward the workpiece on the fixed table 17 by pushing the groove plate 22, and then the sliding frame 8 drives the buffer frame 7 to move toward the workpiece. The buffer frame 7 can perform buffering, which can reduce the squeezing force on the workpiece, thereby protecting the workpiece.

[0032] During actual use, the first cylinder 3, the second cylinder 10, the first pressure sensor 6, and the second pressure sensor 24 are all electrically connected to the external controller, and the workpiece is placed on the upper surface of the support table 2. By controlling the contraction of the output end of the first cylinder 3, the connecting plate 12 fixedly connected to its output end is driven to move downward. The two sides of the connecting plate 12 are connected by the rotation of the pin shaft 13, which drives the upper connecting frame 16 and one side of the L-shaped frame 15 to rotate, so that the lower side of the L-shaped frame 15 drives the lower connecting frame 14 to rotate in the direction away from the first cylinder 3 with its bottom pin shaft 13 through the connection of the pin shaft 13. At the same time, the upper side of the upper connecting frame 16 and the L-shaped frame 15 drives the main fixing clamp 4 to move in the direction close to the first cylinder 3 through the connection of the pin shaft 13, so that the protective soft block 5 on one side of the main fixing clamp 4 slowly abuts against the side wall of the workpiece, thereby clamping and fixing the workpiece, and by controlling the contraction of the output end of the second cylinder 10, the rotating plate 9 is driven to move through the connection of the middle shaft 19, and the bottom of the rotating plate 9 is rotatably sleeved on the fixed The small shaft 23 is slidably connected with the groove plate 22, so that the sliding frame 8 on one side thereof is driven to move toward the workpiece on the fixed platform 17 by pushing the groove plate 22, and then the sliding frame 8 drives the buffer frame 7 to move toward the workpiece. The buffer frame 7 can be buffered to reduce the squeezing force on the workpiece, thereby protecting the workpiece. A first pressure sensor 6 is embedded and fixedly installed on one side of the protective soft block 5, and a second pressure sensor 24 is embedded and fixedly installed on one side of the buffer frame 7. The first pressure sensor 6 and the second pressure sensor 24 are provided to adjust the tightness of the workpiece clamping. The first pressure sensor 6 and the second pressure sensor 24 will feed back the pre-tightening force of the workpiece to the controller in real time. When the standard pressure value is reached, the controller stops the contraction of the first cylinder 3 and the second cylinder 10 to avoid the workpiece from falling due to a small pre-tightening force or being crushed due to a large pre-tightening force, thereby protecting the workpiece.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A component processing fixture with a workpiece protection structure, comprising a chassis (1), characterized in that: The upper surface of the chassis (1) is fixedly connected to a support platform (2), a first cylinder (3) is arranged on the lower side of the support platform (2), a main fixing clamp (4) is arranged on the upper side of the support platform (2), a protective soft block (5) is fixedly connected to one side of the main fixing clamp (4), and a first pressure sensor (6) is embedded in the protective soft block (5); A buffer frame (7) is provided on one side of the first pressure sensor (6), one side of the buffer frame (7) is fixedly connected to a sliding frame (8), a rotating plate (9) is installed at one end of the sliding frame (8), a second cylinder (10) is provided on the lower side of the rotating plate (9), and a second pressure sensor (24) is embeddedly installed on one side of the sliding frame (8).

2. The component processing fixture with a workpiece protection structure according to claim 1, characterized in that: A base (11) is fixedly connected between the first cylinder (3) and the chassis (1), and a connecting plate (12) is fixedly connected to the output end of the first cylinder (3).

3. The component processing fixture with a workpiece protection structure according to claim 2, characterized in that: The base (11) is rotatably connected to one end of the lower connecting frame (14) via a pin shaft (13); the other end of the lower connecting frame (14) is rotatably connected to one end of the L-shaped frame (15) via a pin shaft (13); and the other end of the L-shaped frame (15) is rotatably connected to the bottom of the main fixing clamp (4) via the pin shaft (13).

4. The component processing fixture with a workpiece protection structure according to claim 3 is characterized in that: The connecting plate (12) and the L-shaped frame (15) are rotatably connected via a pin shaft (13); an upper connecting frame (16) is provided on one side of the L-shaped frame (15); one end of the upper connecting frame (16) is rotatably connected to the connecting plate (12) via the pin shaft (13); and the other end of the upper connecting frame (16) is rotatably connected to the bottom of the main fixing clamp (4) via the pin shaft (13).

5. The component processing fixture with a workpiece protection structure according to claim 4, characterized in that: The sliding frame (8) is slidably sleeved on the top of the fixed platform (17); a support seat (18) is fixedly connected to the lower surface of the fixed platform (17); and the support seat (18) is fixedly connected to the chassis (1).

6. The component processing fixture with a workpiece protection structure according to claim 5, characterized in that: The bottom end of the second cylinder (10) is rotatably sleeved on the support seat (18), and the output end of the second cylinder (10) is rotatably connected to the rotating plate (9) via a central shaft (19).

7. The component processing fixture with a workpiece protection structure according to claim 6, characterized in that: The rotating plate (9) is rotatably connected to the fixed seat (21) via a large shaft (20); the fixed seat (21) is fixedly mounted on the fixed platform (17); a groove plate (22) is fixedly mounted on one side of the sliding frame (8); the groove plate (22) is slidably connected to the small shaft (23); and the small shaft (23) is fixedly sleeved in the rotating plate (9).

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